Question

Is there a shorter or easier way to determine the center and the radius of a circle given
the equation in general form? Explain.​

Answer 1

Answer:

Well they will give you a clue obviously and always like they'll give the diameter of the circle, then all you do is divide the given number by two i.e divide it into halves, and there you go. You have your radius. Whatever the result is, will be your radius.

Step-by-step explanation:

Hope this was helpful ☺️

Answer 2

Step-by-step explanation:

Equations of a circle:

1. x² + y² + 2gx + 2fy + c = 0

Center is (-g, -f)

Radius is

$\sqrt{ {g}^{2} + {f}^{2} - c }$

2. (x + g)² + (y + f)² = r²

Center is (-g, -f)

Radius is r

You just have to compare the equation given to you with the above.

Hope that helps

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